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Diffstat (limited to 'kernel/tests/include/lapi/io_uring.h')
| -rw-r--r-- | kernel/tests/include/lapi/io_uring.h | 299 |
1 files changed, 0 insertions, 299 deletions
diff --git a/kernel/tests/include/lapi/io_uring.h b/kernel/tests/include/lapi/io_uring.h deleted file mode 100644 index 174e81e..0000000 --- a/kernel/tests/include/lapi/io_uring.h +++ /dev/null @@ -1,299 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Copyright (c) 2020 ARM. All rights reserved. - * Copyright (c) 2020 Petr Vorel <pvorel@suse.cz> - * - * Mostly copied/adapted from <linux/io_uring.h> - */ - -#ifndef IO_URING_H__ -#define IO_URING_H__ - -#include <unistd.h> -#include <fcntl.h> -#include <sys/types.h> -#include <sys/uio.h> -#include <stdlib.h> -#include <linux/fs.h> - -#include "lapi/syscalls.h" - -#ifndef IOSQE_FIXED_FILE - -#ifndef __kernel_rwf_t -typedef int __kernel_rwf_t; -#endif - -/* - * IO submission data structure (Submission Queue Entry) - */ -struct io_uring_sqe { - uint8_t opcode; /* type of operation for this sqe */ - uint8_t flags; /* IOSQE_ flags */ - uint16_t ioprio; /* ioprio for the request */ - int32_t fd; /* file descriptor to do IO on */ - union { - uint64_t off; /* offset into file */ - uint64_t addr2; - }; - uint64_t addr; /* pointer to buffer or iovecs */ - uint32_t len; /* buffer size or number of iovecs */ - union { - __kernel_rwf_t rw_flags; - uint32_t fsync_flags; - uint16_t poll_events; - uint32_t sync_range_flags; - uint32_t msg_flags; - uint32_t timeout_flags; - uint32_t accept_flags; - uint32_t cancel_flags; - uint32_t open_flags; - uint32_t statx_flags; - uint32_t fadvise_advice; - }; - uint64_t user_data; /* data to be passed back at completion time */ - union { - struct { - /* index into fixed buffers, if used */ - uint16_t buf_index; - /* personality to use, if used */ - uint16_t personality; - }; - uint64_t __pad2[3]; - }; -}; - -enum { - IOSQE_FIXED_FILE_BIT, - IOSQE_IO_DRAIN_BIT, - IOSQE_IO_LINK_BIT, - IOSQE_IO_HARDLINK_BIT, - IOSQE_ASYNC_BIT, -}; - -/* - * sqe->flags - */ -/* use fixed fileset */ -#define IOSQE_FIXED_FILE (1U << IOSQE_FIXED_FILE_BIT) -/* issue after inflight IO */ -#define IOSQE_IO_DRAIN (1U << IOSQE_IO_DRAIN_BIT) -/* links next sqe */ -#define IOSQE_IO_LINK (1U << IOSQE_IO_LINK_BIT) -/* like LINK, but stronger */ -#define IOSQE_IO_HARDLINK (1U << IOSQE_IO_HARDLINK_BIT) -/* always go async */ -#define IOSQE_ASYNC (1U << IOSQE_ASYNC_BIT) - -/* - * io_uring_setup() flags - */ -#define IORING_SETUP_IOPOLL (1U << 0) /* io_context is polled */ -#define IORING_SETUP_SQPOLL (1U << 1) /* SQ poll thread */ -#define IORING_SETUP_SQ_AFF (1U << 2) /* sq_thread_cpu is valid */ -#define IORING_SETUP_CQSIZE (1U << 3) /* app defines CQ size */ -#define IORING_SETUP_CLAMP (1U << 4) /* clamp SQ/CQ ring sizes */ -#define IORING_SETUP_ATTACH_WQ (1U << 5) /* attach to existing wq */ - -enum { - IORING_OP_NOP, - IORING_OP_READV, - IORING_OP_WRITEV, - IORING_OP_FSYNC, - IORING_OP_READ_FIXED, - IORING_OP_WRITE_FIXED, - IORING_OP_POLL_ADD, - IORING_OP_POLL_REMOVE, - IORING_OP_SYNC_FILE_RANGE, - IORING_OP_SENDMSG, - IORING_OP_RECVMSG, - IORING_OP_TIMEOUT, - IORING_OP_TIMEOUT_REMOVE, - IORING_OP_ACCEPT, - IORING_OP_ASYNC_CANCEL, - IORING_OP_LINK_TIMEOUT, - IORING_OP_CONNECT, - IORING_OP_FALLOCATE, - IORING_OP_OPENAT, - IORING_OP_CLOSE, - IORING_OP_FILES_UPDATE, - IORING_OP_STATX, - IORING_OP_READ, - IORING_OP_WRITE, - IORING_OP_FADVISE, - IORING_OP_MADVISE, - IORING_OP_SEND, - IORING_OP_RECV, - IORING_OP_OPENAT2, - IORING_OP_EPOLL_CTL, - - /* this goes last, obviously */ - IORING_OP_LAST, -}; - -/* - * sqe->fsync_flags - */ -#define IORING_FSYNC_DATASYNC (1U << 0) - -/* - * sqe->timeout_flags - */ -#define IORING_TIMEOUT_ABS (1U << 0) - -/* - * IO completion data structure (Completion Queue Entry) - */ -struct io_uring_cqe { - uint64_t user_data; /* sqe->data submission passed back */ - int32_t res; /* result code for this event */ - uint32_t flags; -}; - -/* - * Magic offsets for the application to mmap the data it needs - */ -#define IORING_OFF_SQ_RING 0ULL -#define IORING_OFF_CQ_RING 0x8000000ULL -#define IORING_OFF_SQES 0x10000000ULL - -/* - * Filled with the offset for mmap(2) - */ -struct io_sqring_offsets { - uint32_t head; - uint32_t tail; - uint32_t ring_mask; - uint32_t ring_entries; - uint32_t flags; - uint32_t dropped; - uint32_t array; - uint32_t resv1; - uint64_t resv2; -}; - -/* - * sq_ring->flags - */ -#define IORING_SQ_NEED_WAKEUP (1U << 0) /* needs io_uring_enter wakeup */ - -struct io_cqring_offsets { - uint32_t head; - uint32_t tail; - uint32_t ring_mask; - uint32_t ring_entries; - uint32_t overflow; - uint32_t cqes; - uint64_t resv[2]; -}; - -/* - * io_uring_enter(2) flags - */ -#define IORING_ENTER_GETEVENTS (1U << 0) -#define IORING_ENTER_SQ_WAKEUP (1U << 1) - -/* - * Passed in for io_uring_setup(2). Copied back with updated info on success - */ -struct io_uring_params { - uint32_t sq_entries; - uint32_t cq_entries; - uint32_t flags; - uint32_t sq_thread_cpu; - uint32_t sq_thread_idle; - uint32_t features; - uint32_t wq_fd; - uint32_t resv[3]; - struct io_sqring_offsets sq_off; - struct io_cqring_offsets cq_off; -}; - -/* - * io_uring_params->features flags - */ -#define IORING_FEAT_SINGLE_MMAP (1U << 0) -#define IORING_FEAT_NODROP (1U << 1) -#define IORING_FEAT_SUBMIT_STABLE (1U << 2) -#define IORING_FEAT_RW_CUR_POS (1U << 3) -#define IORING_FEAT_CUR_PERSONALITY (1U << 4) - -/* - * io_uring_register(2) opcodes and arguments - */ -#define IORING_REGISTER_BUFFERS 0 -#define IORING_UNREGISTER_BUFFERS 1 -#define IORING_REGISTER_FILES 2 -#define IORING_UNREGISTER_FILES 3 -#define IORING_REGISTER_EVENTFD 4 -#define IORING_UNREGISTER_EVENTFD 5 -#define IORING_REGISTER_FILES_UPDATE 6 -#define IORING_REGISTER_EVENTFD_ASYNC 7 -#define IORING_REGISTER_PROBE 8 -#define IORING_REGISTER_PERSONALITY 9 -#define IORING_UNREGISTER_PERSONALITY 10 - -struct io_uring_files_update { - uint32_t offset; - uint32_t resv; - uint64_t __attribute__((aligned(8))) fds; -}; - -#define IO_URING_OP_SUPPORTED (1U << 0) - -struct io_uring_probe_op { - uint8_t op; - uint8_t resv; - uint16_t flags; /* IO_URING_OP_* flags */ - uint32_t resv2; -}; - -struct io_uring_probe { - uint8_t last_op; /* last opcode supported */ - uint8_t ops_len; /* length of ops[] array below */ - uint16_t resv; - uint32_t resv2[3]; - struct io_uring_probe_op ops[0]; -}; - -#endif /* IOSQE_FIXED_FILE */ - - -#ifndef HAVE_IO_URING_REGISTER -int io_uring_register(int fd, unsigned int opcode, void *arg, - unsigned int nr_args) -{ - return tst_syscall(__NR_io_uring_register, fd, opcode, arg, nr_args); -} -#endif /* HAVE_IO_URING_REGISTER */ - - -#ifndef HAVE_IO_URING_SETUP -int io_uring_setup(unsigned int entries, struct io_uring_params *p) -{ - return tst_syscall(__NR_io_uring_setup, entries, p); -} -#endif /* HAVE_IO_URING_SETUP */ - -#ifndef HAVE_IO_URING_ENTER -int io_uring_enter(int fd, unsigned int to_submit, unsigned int min_complete, - unsigned int flags, sigset_t *sig) -{ - return tst_syscall(__NR_io_uring_enter, fd, to_submit, min_complete, - flags, sig, _NSIG / 8); -} -#endif /* HAVE_IO_URING_ENTER */ - -void io_uring_setup_supported_by_kernel(void) -{ - if ((tst_kvercmp(5, 1, 0)) < 0) { - TEST(syscall(__NR_io_uring_setup, NULL, 0)); - if (TST_RET != -1) - SAFE_CLOSE(TST_RET); - else if (TST_ERR == ENOSYS) - tst_brk(TCONF, - "Test not supported on kernel version < v5.1"); - } -} - -#endif /* IO_URING_H__ */ |